BMW i3 rear teardown

Removing rear panels

Fabian B is removing rear bumber to install rear-view-camera on a BMW i3. It's pretty interesting to see how it looks under the panels.

Photos by Fabian B.

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Photo: G. Erglis

Laddare för elbil vid Liseberg / Parkering

Finns nu fina elbilsladdare vid Liseberg. Tack Christian för info!

"20 fräscha laddare vid parkering Liseberg! Gillar uppställningen. Kan alltså ladda 40 bilar samtidigt. Riktigt bra och känns även som ett hyfsat pris. 34 kr/Tim inkl. laddning. Jag stod här i 3 h och laddade ca 20 kWh. Blir ju ca 7 kW i effekt. Stod ingenstans om effekt så jag vet inte om den sänks om man delar på en laddare. Men säkringarna per laddare var 63 A så det bådar gott." - Christian J.


Foto: Christian J.

New Chargers at the amusement park Liseberg.

Nissan Leaf charing for 3 hours, getting about 20 kWh. Price 34 SEK / Hour

Foto Christoffer N.

"Funkade mycket bra. Bilen var varm och fulladdad vid hemfärd."

Artikel om hur batteristatus avgör köp

BMW I3 Rex vs Nissan Leaf vs Renault Zoe

Foto Björn H.
Verkar vara från tidningen Motor.

Längre ner i texten framgår det att ytterst få batterier har fått bytas ut.

Tesla model 3 has another engine than the Model S and X

Great video explaining the Tesla Model 3 engine and more..

The battery that can go 1 million miles?

The battery that can go 1 million miles..?

Read the report

"A Wide Range of Testing Results on an Excellent Lithium-Ion Cell
Chemistry to be used as Benchmarks for New Battery Technologies"

http://jes.ecsdl.org/content/166/13/A3031.full

Nissan Leaf charging problem in colder climates

Nissan does not have a thermal system handling the cold in their cars. Not even on the 2019 models. This is problematic in areas of cold weather when charging them. Charing cold batteries reduces the SEI layer.
Tesla on the other hand has a thermal system, heating pump, glycol between the batteries, warming the batteries when too cold for charging them (making it doable). (Source video below).

About the SEI layer
"The cell’s solid electrolyte interface (SEI) layer formation is a necessary part of the initialization process of the battery during the first charging cycles. The SEI layer protects the electrolyte material from further depletion and protects the charged anode from corrosion (the anode material reacts with the electrolyte material) [36]." - https://www.mdpi.com/1996-1073/12/5/946/pdf

Check out this video around  8:00 minutes in:




They also dont have any cooling for their batteries, so the batteries get hot when fast-charging..

Source: https://www.mestmotor.se/automotorsport/artiklar/nyheter/20180331/nya-siffror-nissan-leaf-tappar-en-hel-del-batterikapacitet-efter-bara-tva-ar/?fbclid=IwAR2rGbTldOTysAZb9jWXAqYkJgP9VtsoEe6xhM_VQ4USH9U2R1ZfB5JEr6A

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This is the same for Li-Ion as for LiFeP04.


Battleborn Battery CEO Interview! LiFePO4 Low-temp Charging, Storage, Longevity and so much more

---------------------- More about Nissan Leaf batteries and charging temperatures ----------

https://www.youtube.com/watch?v=WlxBOJrEKAo

2018 Leaf EV vs 2017 Bolt EV - Expected Li-Ion Battery Life

Video explaining DIY gaspedal

Curtis PB-6

Potentiometer
0-5000 ohm

"pretty much standard"

Throttle to use for gaspedal.